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Barbara Leff, LCSW
NPI 1417098476 · Clinical Social Worker · New York, NY
Barbara Leff, LCSW is a Clinical Social Worker provider in New York, NY (NPI 1417098476).
Provider details
- NPI number
- 1417098476
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- NR040086 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
301 E 79th St
#4d
New York, NY 10021-0951
Phone: (212) 535-4107
Fax: (212) 327-4090
Street-level locationGet directions
Mailing address
301 E 79th St
New York, NY 10021-0951
Registry dates
- Enumerated
- 2007-02-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Barbara Leff's NPI number?
- Barbara Leff's National Provider Identifier (NPI) is 1417098476, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Leff's specialty?
- Barbara Leff is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Barbara Leff located?
- Barbara Leff's practice location on file with NPPES is 301 E 79th St, New York, NY 10021-0951.
- What is Barbara Leff's phone number?
- The practice phone number listed in the NPPES registry for Barbara Leff is (212) 535-4107.
- Is Barbara Leff's NPI active?
- Yes — Barbara Leff's NPI (1417098476) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.